<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>TZ-追梦</title>
    <style>
        * {
            margin: 0;
            padding: 0;

            -moz-user-select:none;
            -ms-user-select:none;
            user-select:none;

        }
        li{
            list-style: none;
        }
        ul{
            width: 350px;
            height: 100px;
            margin: 100px auto;
            box-shadow: 0 0 2px #000;
            display: flex;
        }
        li{
            flex: 1;
            margin-right: 1px;
            /*border-right: 1px solid blue;*/
            /*width: 70px;
            height: 100%;
            float: left;
            border-right: 1px solid blue;
            box-sizing:border-box;*/
        }
        ul li:nth-child(1){background: green}
        ul li:nth-child(2){background: gray}
        ul li:nth-child(3){background: purple;}
        ul li:nth-child(4){background: gold}
        ul li:nth-child(5){background: pink}
    </style>
</head>
<body>
<ul>
    <li>11</li>
    <li>22</li>
    <li>33</li>
    <li>44</li>
    <li>55</li>
</ul>
</body>
</html>